package com.atguigu.lease.web.app.interceptor;

import com.atguigu.lease.common.context.LoginUser;
import com.atguigu.lease.common.context.LoginUserContext;
import com.atguigu.lease.common.exception.BusinessException;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.util.JwtUtil;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

/**
 * @author Administrator
 */
@Component
public class AuthenticationInterceptor implements HandlerInterceptor {


    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader("access-token");
        if(StringUtils.isBlank(token)){
            throw new BusinessException(ResultCodeEnum.ADMIN_LOGIN_AUTH);
        }else{
            Claims claims = JwtUtil.parseToken(token);
            Long userId = claims.get("userId", Long.class);
            String userName = claims.get("username", String.class);
            LoginUser loginUser = new LoginUser();
            loginUser.setUserId(userId);
            loginUser.setUsername(userName);
            LoginUserContext.setLoginUser(loginUser);
        }
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        LoginUserContext.clear();
    }
}
